Home / 52,454.12-78,713.96-21,289.37

Finding the Fourth Proportional to 52,454.12, 78,713.96 and 21,289.37

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Solution

The fourth proportional to 52,454.12, 78,713.96 and 21,289.37 is: 31,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,454.12 : 78,713.96 = 21,289.37 : x
  2. Step 2: Convert to fraction form
    52,454.12/78,713.96 = 21,289.37/x
  3. Step 3: Cross multiply
    52,454.12x = 78,713.96 × 21,289.37
  4. Step 4: Simplify right side
    52,454.12x = 1,675,770,118.59
  5. Step 5: Solve for x
    x = 1,675,770,118.59/52,454.12
  6. Step 6: Final answer
    x = 31,947.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.